The attacks of 9/11 kickstarted the development of a pervasive and durable transnational counter-terrorism order. This has evolved into a vast institutional architecture with direct effects on domestic law around the world and a number of impacts on everyday life that are often poorly understood. States found, fund and lead institutions inside and outside the United Nations that develop and consolidate transnational counter-terrorism through hard and soft law, strategies, capacity building and counter-terrorism 'products'. These institutions and laws underpin the expansion of counter-terrorism, so that new fields of activity get drawn into it, and others are securitised through their reframing as counter-terrorism and 'preventing and countering extremism'. Drawing on insights from law, international relations, political science and security studies, this book demonstrates the international, regional, national and personal impacts of this institutional and legal order. Fiona de Londras demonstrates that it is expansionary, rights-limiting and unaccountable.